diff options
| author | Heiko Carstens <hca@linux.ibm.com> | 2021-02-10 21:51:02 +0100 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2021-02-13 17:17:53 +0100 |
| commit | 96c0a6a72d181a330db6dc9848ff2e6584b1aa5b (patch) | |
| tree | a07fb7a168db5b28c239c84822e818cee1655bc1 /include/linux/types.h | |
| parent | efa54735905c03bf876b4451cfaef6b45046bc53 (diff) | |
s390,alpha: switch to 64-bit ino_t
s390 and alpha are the only 64 bit architectures with a 32-bit ino_t.
Since this is quite unusual this causes bugs from time to time.
See e.g. commit ebce3eb2f7ef ("ceph: fix inode number handling on
arches with 32-bit ino_t") for an example.
This (obviously) also prevents s390 and alpha to use 64-bit ino_t for
tmpfs. See commit b85a7a8bb573 ("tmpfs: disallow CONFIG_TMPFS_INODE64
on s390").
Therefore switch both s390 and alpha to 64-bit ino_t. This should only
have an effect on the ustat system call. To prevent ABI breakage
define struct ustat compatible to the old layout and change
sys_ustat() accordingly.
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'include/linux/types.h')
| -rw-r--r-- | include/linux/types.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/include/linux/types.h b/include/linux/types.h index a147977602b5..ac825ad90e44 100644 --- a/include/linux/types.h +++ b/include/linux/types.h @@ -14,7 +14,7 @@ typedef u32 __kernel_dev_t; typedef __kernel_fd_set fd_set; typedef __kernel_dev_t dev_t; -typedef __kernel_ino_t ino_t; +typedef __kernel_ulong_t ino_t; typedef __kernel_mode_t mode_t; typedef unsigned short umode_t; typedef u32 nlink_t; @@ -189,7 +189,11 @@ struct hlist_node { struct ustat { __kernel_daddr_t f_tfree; - __kernel_ino_t f_tinode; +#ifdef CONFIG_ARCH_32BIT_USTAT_F_TINODE + unsigned int f_tinode; +#else + unsigned long f_tinode; +#endif char f_fname[6]; char f_fpack[6]; }; |